Commit | Line | Data |
---|---|---|
f078f209 | 1 | /* |
cee075a2 | 2 | * Copyright (c) 2008-2009 Atheros Communications Inc. |
f078f209 LR |
3 | * |
4 | * Permission to use, copy, modify, and/or distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
15 | */ | |
16 | ||
17 | #include <linux/kernel.h> | |
18 | #include <linux/slab.h> | |
3a702e49 BC |
19 | #include <net/cfg80211.h> |
20 | #include <net/mac80211.h> | |
3a702e49 | 21 | #include "regd.h" |
f078f209 LR |
22 | #include "regd_common.h" |
23 | ||
5f8e077c LR |
24 | /* |
25 | * This is a set of common rules used by our world regulatory domains. | |
26 | * We have 12 world regulatory domains. To save space we consolidate | |
27 | * the regulatory domains in 5 structures by frequency and change | |
28 | * the flags on our reg_notifier() on a case by case basis. | |
29 | */ | |
f078f209 | 30 | |
5f8e077c LR |
31 | /* Only these channels all allow active scan on all world regulatory domains */ |
32 | #define ATH9K_2GHZ_CH01_11 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0) | |
33 | ||
34 | /* We enable active scan on these a case by case basis by regulatory domain */ | |
35 | #define ATH9K_2GHZ_CH12_13 REG_RULE(2467-10, 2472+10, 40, 0, 20,\ | |
36 | NL80211_RRF_PASSIVE_SCAN) | |
37 | #define ATH9K_2GHZ_CH14 REG_RULE(2484-10, 2484+10, 40, 0, 20,\ | |
38 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_OFDM) | |
39 | ||
40 | /* We allow IBSS on these on a case by case basis by regulatory domain */ | |
41 | #define ATH9K_5GHZ_5150_5350 REG_RULE(5150-10, 5350+10, 40, 0, 30,\ | |
42 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS) | |
43 | #define ATH9K_5GHZ_5470_5850 REG_RULE(5470-10, 5850+10, 40, 0, 30,\ | |
44 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS) | |
45 | #define ATH9K_5GHZ_5725_5850 REG_RULE(5725-10, 5850+10, 40, 0, 30,\ | |
46 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS) | |
47 | ||
48 | #define ATH9K_2GHZ_ALL ATH9K_2GHZ_CH01_11, \ | |
49 | ATH9K_2GHZ_CH12_13, \ | |
50 | ATH9K_2GHZ_CH14 | |
51 | ||
52 | #define ATH9K_5GHZ_ALL ATH9K_5GHZ_5150_5350, \ | |
53 | ATH9K_5GHZ_5470_5850 | |
54 | /* This one skips what we call "mid band" */ | |
55 | #define ATH9K_5GHZ_NO_MIDBAND ATH9K_5GHZ_5150_5350, \ | |
56 | ATH9K_5GHZ_5725_5850 | |
57 | ||
58 | /* Can be used for: | |
59 | * 0x60, 0x61, 0x62 */ | |
3a702e49 | 60 | static const struct ieee80211_regdomain ath_world_regdom_60_61_62 = { |
5f8e077c LR |
61 | .n_reg_rules = 5, |
62 | .alpha2 = "99", | |
63 | .reg_rules = { | |
64 | ATH9K_2GHZ_ALL, | |
65 | ATH9K_5GHZ_ALL, | |
66 | } | |
67 | }; | |
68 | ||
69 | /* Can be used by 0x63 and 0x65 */ | |
3a702e49 | 70 | static const struct ieee80211_regdomain ath_world_regdom_63_65 = { |
5f8e077c LR |
71 | .n_reg_rules = 4, |
72 | .alpha2 = "99", | |
73 | .reg_rules = { | |
74 | ATH9K_2GHZ_CH01_11, | |
75 | ATH9K_2GHZ_CH12_13, | |
76 | ATH9K_5GHZ_NO_MIDBAND, | |
77 | } | |
78 | }; | |
79 | ||
80 | /* Can be used by 0x64 only */ | |
3a702e49 | 81 | static const struct ieee80211_regdomain ath_world_regdom_64 = { |
5f8e077c LR |
82 | .n_reg_rules = 3, |
83 | .alpha2 = "99", | |
84 | .reg_rules = { | |
85 | ATH9K_2GHZ_CH01_11, | |
86 | ATH9K_5GHZ_NO_MIDBAND, | |
87 | } | |
88 | }; | |
89 | ||
90 | /* Can be used by 0x66 and 0x69 */ | |
3a702e49 | 91 | static const struct ieee80211_regdomain ath_world_regdom_66_69 = { |
5f8e077c LR |
92 | .n_reg_rules = 3, |
93 | .alpha2 = "99", | |
94 | .reg_rules = { | |
95 | ATH9K_2GHZ_CH01_11, | |
96 | ATH9K_5GHZ_ALL, | |
97 | } | |
98 | }; | |
99 | ||
100 | /* Can be used by 0x67, 0x6A and 0x68 */ | |
3a702e49 | 101 | static const struct ieee80211_regdomain ath_world_regdom_67_68_6A = { |
5f8e077c LR |
102 | .n_reg_rules = 4, |
103 | .alpha2 = "99", | |
104 | .reg_rules = { | |
105 | ATH9K_2GHZ_CH01_11, | |
106 | ATH9K_2GHZ_CH12_13, | |
107 | ATH9K_5GHZ_ALL, | |
108 | } | |
109 | }; | |
f078f209 | 110 | |
d0f48f9d BC |
111 | static inline bool is_wwr_sku(u16 regd) |
112 | { | |
113 | return ((regd & WORLD_SKU_MASK) == WORLD_SKU_PREFIX) || | |
114 | (regd == WORLD); | |
115 | } | |
116 | ||
3a702e49 | 117 | static u16 ath_regd_get_eepromRD(struct ath_regulatory *reg) |
f078f209 | 118 | { |
c02cf373 | 119 | return reg->current_rd & ~WORLDWIDE_ROAMING_FLAG; |
f078f209 LR |
120 | } |
121 | ||
3a702e49 | 122 | bool ath_is_world_regd(struct ath_regulatory *reg) |
5f8e077c | 123 | { |
3a702e49 | 124 | return is_wwr_sku(ath_regd_get_eepromRD(reg)); |
f078f209 | 125 | } |
3a702e49 | 126 | EXPORT_SYMBOL(ath_is_world_regd); |
f078f209 | 127 | |
e3bb249b | 128 | static const struct ieee80211_regdomain *ath_default_world_regdomain(void) |
f078f209 | 129 | { |
5f8e077c | 130 | /* this is the most restrictive */ |
3a702e49 | 131 | return &ath_world_regdom_64; |
5f8e077c | 132 | } |
f078f209 | 133 | |
e3bb249b | 134 | static const struct |
3a702e49 | 135 | ieee80211_regdomain *ath_world_regdomain(struct ath_regulatory *reg) |
5f8e077c | 136 | { |
c02cf373 | 137 | switch (reg->regpair->regDmnEnum) { |
5f8e077c LR |
138 | case 0x60: |
139 | case 0x61: | |
140 | case 0x62: | |
3a702e49 | 141 | return &ath_world_regdom_60_61_62; |
5f8e077c LR |
142 | case 0x63: |
143 | case 0x65: | |
3a702e49 | 144 | return &ath_world_regdom_63_65; |
5f8e077c | 145 | case 0x64: |
3a702e49 | 146 | return &ath_world_regdom_64; |
5f8e077c LR |
147 | case 0x66: |
148 | case 0x69: | |
3a702e49 | 149 | return &ath_world_regdom_66_69; |
5f8e077c LR |
150 | case 0x67: |
151 | case 0x68: | |
152 | case 0x6A: | |
3a702e49 | 153 | return &ath_world_regdom_67_68_6A; |
5f8e077c LR |
154 | default: |
155 | WARN_ON(1); | |
3a702e49 | 156 | return ath_default_world_regdomain(); |
f078f209 | 157 | } |
f078f209 LR |
158 | } |
159 | ||
547e4c2e | 160 | /* Frequency is one where radar detection is required */ |
3a702e49 | 161 | static bool ath_is_radar_freq(u16 center_freq) |
547e4c2e LR |
162 | { |
163 | return (center_freq >= 5260 && center_freq <= 5700); | |
164 | } | |
165 | ||
7519a8f0 | 166 | /* |
84540869 LR |
167 | * N.B: These exception rules do not apply radar freqs. |
168 | * | |
169 | * - We enable adhoc (or beaconing) if allowed by 11d | |
170 | * - We enable active scan if the channel is allowed by 11d | |
171 | * - If no country IE has been processed and a we determine we have | |
172 | * received a beacon on a channel we can enable active scan and | |
173 | * adhoc (or beaconing). | |
7519a8f0 | 174 | */ |
6b2b2ffb LR |
175 | static void |
176 | ath_reg_apply_beaconing_flags(struct wiphy *wiphy, | |
177 | enum nl80211_reg_initiator initiator) | |
f078f209 | 178 | { |
84540869 | 179 | enum ieee80211_band band; |
5f8e077c LR |
180 | struct ieee80211_supported_band *sband; |
181 | const struct ieee80211_reg_rule *reg_rule; | |
182 | struct ieee80211_channel *ch; | |
183 | unsigned int i; | |
184 | u32 bandwidth = 0; | |
185 | int r; | |
186 | ||
84540869 | 187 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
f078f209 | 188 | |
84540869 | 189 | if (!wiphy->bands[band]) |
5f8e077c | 190 | continue; |
84540869 LR |
191 | |
192 | sband = wiphy->bands[band]; | |
193 | ||
194 | for (i = 0; i < sband->n_channels; i++) { | |
195 | ||
196 | ch = &sband->channels[i]; | |
197 | ||
3a702e49 | 198 | if (ath_is_radar_freq(ch->center_freq) || |
84540869 LR |
199 | (ch->flags & IEEE80211_CHAN_RADAR)) |
200 | continue; | |
201 | ||
7db90f4a | 202 | if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) { |
038659e7 LR |
203 | r = freq_reg_info(wiphy, |
204 | ch->center_freq, | |
205 | bandwidth, | |
206 | ®_rule); | |
84540869 LR |
207 | if (r) |
208 | continue; | |
209 | /* | |
210 | * If 11d had a rule for this channel ensure | |
211 | * we enable adhoc/beaconing if it allows us to | |
212 | * use it. Note that we would have disabled it | |
213 | * by applying our static world regdomain by | |
214 | * default during init, prior to calling our | |
215 | * regulatory_hint(). | |
216 | */ | |
217 | if (!(reg_rule->flags & | |
218 | NL80211_RRF_NO_IBSS)) | |
219 | ch->flags &= | |
220 | ~IEEE80211_CHAN_NO_IBSS; | |
221 | if (!(reg_rule->flags & | |
222 | NL80211_RRF_PASSIVE_SCAN)) | |
223 | ch->flags &= | |
224 | ~IEEE80211_CHAN_PASSIVE_SCAN; | |
225 | } else { | |
226 | if (ch->beacon_found) | |
227 | ch->flags &= ~(IEEE80211_CHAN_NO_IBSS | | |
228 | IEEE80211_CHAN_PASSIVE_SCAN); | |
229 | } | |
230 | } | |
5f8e077c | 231 | } |
84540869 | 232 | |
f078f209 LR |
233 | } |
234 | ||
5f8e077c | 235 | /* Allows active scan scan on Ch 12 and 13 */ |
6b2b2ffb LR |
236 | static void |
237 | ath_reg_apply_active_scan_flags(struct wiphy *wiphy, | |
238 | enum nl80211_reg_initiator initiator) | |
f078f209 | 239 | { |
5f8e077c LR |
240 | struct ieee80211_supported_band *sband; |
241 | struct ieee80211_channel *ch; | |
242 | const struct ieee80211_reg_rule *reg_rule; | |
243 | u32 bandwidth = 0; | |
244 | int r; | |
245 | ||
5f8e077c LR |
246 | sband = wiphy->bands[IEEE80211_BAND_2GHZ]; |
247 | ||
84540869 LR |
248 | /* |
249 | * If no country IE has been received always enable active scan | |
250 | * on these channels. This is only done for specific regulatory SKUs | |
251 | */ | |
7db90f4a | 252 | if (initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) { |
5f8e077c LR |
253 | ch = &sband->channels[11]; /* CH 12 */ |
254 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
255 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
256 | ch = &sband->channels[12]; /* CH 13 */ | |
257 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
258 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
259 | return; | |
260 | } | |
f078f209 | 261 | |
84540869 LR |
262 | /* |
263 | * If a country IE has been recieved check its rule for this | |
5f8e077c | 264 | * channel first before enabling active scan. The passive scan |
84540869 LR |
265 | * would have been enforced by the initial processing of our |
266 | * custom regulatory domain. | |
267 | */ | |
f078f209 | 268 | |
5f8e077c | 269 | ch = &sband->channels[11]; /* CH 12 */ |
038659e7 | 270 | r = freq_reg_info(wiphy, ch->center_freq, bandwidth, ®_rule); |
5f8e077c LR |
271 | if (!r) { |
272 | if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN)) | |
273 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
274 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
f078f209 LR |
275 | } |
276 | ||
5f8e077c | 277 | ch = &sband->channels[12]; /* CH 13 */ |
038659e7 | 278 | r = freq_reg_info(wiphy, ch->center_freq, bandwidth, ®_rule); |
5f8e077c LR |
279 | if (!r) { |
280 | if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN)) | |
281 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
282 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
f078f209 | 283 | } |
f078f209 LR |
284 | } |
285 | ||
5f8e077c | 286 | /* Always apply Radar/DFS rules on freq range 5260 MHz - 5700 MHz */ |
e3bb249b | 287 | static void ath_reg_apply_radar_flags(struct wiphy *wiphy) |
f078f209 | 288 | { |
5f8e077c LR |
289 | struct ieee80211_supported_band *sband; |
290 | struct ieee80211_channel *ch; | |
291 | unsigned int i; | |
f078f209 | 292 | |
5f8e077c LR |
293 | if (!wiphy->bands[IEEE80211_BAND_5GHZ]) |
294 | return; | |
f078f209 | 295 | |
5f8e077c | 296 | sband = wiphy->bands[IEEE80211_BAND_5GHZ]; |
f078f209 | 297 | |
5f8e077c LR |
298 | for (i = 0; i < sband->n_channels; i++) { |
299 | ch = &sband->channels[i]; | |
3a702e49 | 300 | if (!ath_is_radar_freq(ch->center_freq)) |
5f8e077c LR |
301 | continue; |
302 | /* We always enable radar detection/DFS on this | |
303 | * frequency range. Additionally we also apply on | |
304 | * this frequency range: | |
305 | * - If STA mode does not yet have DFS supports disable | |
306 | * active scanning | |
307 | * - If adhoc mode does not support DFS yet then | |
308 | * disable adhoc in the frequency. | |
309 | * - If AP mode does not yet support radar detection/DFS | |
310 | * do not allow AP mode | |
311 | */ | |
312 | if (!(ch->flags & IEEE80211_CHAN_DISABLED)) | |
313 | ch->flags |= IEEE80211_CHAN_RADAR | | |
314 | IEEE80211_CHAN_NO_IBSS | | |
315 | IEEE80211_CHAN_PASSIVE_SCAN; | |
316 | } | |
317 | } | |
f078f209 | 318 | |
e3bb249b | 319 | static void ath_reg_apply_world_flags(struct wiphy *wiphy, |
6b2b2ffb LR |
320 | enum nl80211_reg_initiator initiator, |
321 | struct ath_regulatory *reg) | |
5f8e077c | 322 | { |
c02cf373 | 323 | switch (reg->regpair->regDmnEnum) { |
5f8e077c LR |
324 | case 0x60: |
325 | case 0x63: | |
326 | case 0x66: | |
327 | case 0x67: | |
3a702e49 | 328 | ath_reg_apply_beaconing_flags(wiphy, initiator); |
5f8e077c LR |
329 | break; |
330 | case 0x68: | |
3a702e49 BC |
331 | ath_reg_apply_beaconing_flags(wiphy, initiator); |
332 | ath_reg_apply_active_scan_flags(wiphy, initiator); | |
5f8e077c LR |
333 | break; |
334 | } | |
335 | return; | |
336 | } | |
f078f209 | 337 | |
3a702e49 | 338 | int ath_reg_notifier_apply(struct wiphy *wiphy, |
6b2b2ffb LR |
339 | struct regulatory_request *request, |
340 | struct ath_regulatory *reg) | |
5f8e077c | 341 | { |
5f8e077c | 342 | /* We always apply this */ |
3a702e49 | 343 | ath_reg_apply_radar_flags(wiphy); |
f078f209 | 344 | |
5f8e077c | 345 | switch (request->initiator) { |
7db90f4a LR |
346 | case NL80211_REGDOM_SET_BY_DRIVER: |
347 | case NL80211_REGDOM_SET_BY_CORE: | |
348 | case NL80211_REGDOM_SET_BY_USER: | |
5f8e077c | 349 | break; |
7db90f4a | 350 | case NL80211_REGDOM_SET_BY_COUNTRY_IE: |
3a702e49 BC |
351 | if (ath_is_world_regd(reg)) |
352 | ath_reg_apply_world_flags(wiphy, request->initiator, | |
353 | reg); | |
5f8e077c LR |
354 | break; |
355 | } | |
f078f209 | 356 | |
5f8e077c | 357 | return 0; |
f078f209 | 358 | } |
3a702e49 | 359 | EXPORT_SYMBOL(ath_reg_notifier_apply); |
f078f209 | 360 | |
e3bb249b | 361 | static bool ath_regd_is_eeprom_valid(struct ath_regulatory *reg) |
c02cf373 | 362 | { |
3a702e49 | 363 | u16 rd = ath_regd_get_eepromRD(reg); |
5f8e077c | 364 | int i; |
f078f209 | 365 | |
5f8e077c LR |
366 | if (rd & COUNTRY_ERD_FLAG) { |
367 | /* EEPROM value is a country code */ | |
368 | u16 cc = rd & ~COUNTRY_ERD_FLAG; | |
e03e5ffd LR |
369 | printk(KERN_DEBUG |
370 | "ath: EEPROM indicates we should expect " | |
371 | "a country code\n"); | |
5f8e077c LR |
372 | for (i = 0; i < ARRAY_SIZE(allCountries); i++) |
373 | if (allCountries[i].countryCode == cc) | |
374 | return true; | |
375 | } else { | |
376 | /* EEPROM value is a regpair value */ | |
e03e5ffd LR |
377 | if (rd != CTRY_DEFAULT) |
378 | printk(KERN_DEBUG "ath: EEPROM indicates we " | |
379 | "should expect a direct regpair map\n"); | |
5f8e077c LR |
380 | for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) |
381 | if (regDomainPairs[i].regDmnEnum == rd) | |
382 | return true; | |
f078f209 | 383 | } |
c02cf373 | 384 | printk(KERN_DEBUG |
3a702e49 | 385 | "ath: invalid regulatory domain/country code 0x%x\n", rd); |
f078f209 LR |
386 | return false; |
387 | } | |
388 | ||
5f8e077c | 389 | /* EEPROM country code to regpair mapping */ |
f078f209 | 390 | static struct country_code_to_enum_rd* |
3a702e49 | 391 | ath_regd_find_country(u16 countryCode) |
f078f209 LR |
392 | { |
393 | int i; | |
394 | ||
395 | for (i = 0; i < ARRAY_SIZE(allCountries); i++) { | |
396 | if (allCountries[i].countryCode == countryCode) | |
397 | return &allCountries[i]; | |
398 | } | |
399 | return NULL; | |
400 | } | |
401 | ||
5f8e077c LR |
402 | /* EEPROM rd code to regpair mapping */ |
403 | static struct country_code_to_enum_rd* | |
3a702e49 | 404 | ath_regd_find_country_by_rd(int regdmn) |
5f8e077c LR |
405 | { |
406 | int i; | |
407 | ||
408 | for (i = 0; i < ARRAY_SIZE(allCountries); i++) { | |
409 | if (allCountries[i].regDmnEnum == regdmn) | |
410 | return &allCountries[i]; | |
411 | } | |
412 | return NULL; | |
413 | } | |
414 | ||
415 | /* Returns the map of the EEPROM set RD to a country code */ | |
3a702e49 | 416 | static u16 ath_regd_get_default_country(u16 rd) |
f078f209 | 417 | { |
f078f209 LR |
418 | if (rd & COUNTRY_ERD_FLAG) { |
419 | struct country_code_to_enum_rd *country = NULL; | |
420 | u16 cc = rd & ~COUNTRY_ERD_FLAG; | |
421 | ||
3a702e49 | 422 | country = ath_regd_find_country(cc); |
f078f209 LR |
423 | if (country != NULL) |
424 | return cc; | |
425 | } | |
426 | ||
f078f209 LR |
427 | return CTRY_DEFAULT; |
428 | } | |
429 | ||
5f8e077c | 430 | static struct reg_dmn_pair_mapping* |
3a702e49 | 431 | ath_get_regpair(int regdmn) |
f078f209 LR |
432 | { |
433 | int i; | |
434 | ||
5f8e077c LR |
435 | if (regdmn == NO_ENUMRD) |
436 | return NULL; | |
f078f209 | 437 | for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) { |
5f8e077c LR |
438 | if (regDomainPairs[i].regDmnEnum == regdmn) |
439 | return ®DomainPairs[i]; | |
f078f209 | 440 | } |
5f8e077c | 441 | return NULL; |
f078f209 LR |
442 | } |
443 | ||
6b2b2ffb LR |
444 | static int |
445 | ath_regd_init_wiphy(struct ath_regulatory *reg, | |
446 | struct wiphy *wiphy, | |
447 | int (*reg_notifier)(struct wiphy *wiphy, | |
e3bb249b BC |
448 | struct regulatory_request *request)) |
449 | { | |
450 | const struct ieee80211_regdomain *regd; | |
451 | ||
452 | wiphy->reg_notifier = reg_notifier; | |
5be83de5 | 453 | wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY; |
e3bb249b BC |
454 | |
455 | if (ath_is_world_regd(reg)) { | |
456 | /* | |
457 | * Anything applied here (prior to wiphy registration) gets | |
458 | * saved on the wiphy orig_* parameters | |
459 | */ | |
460 | regd = ath_world_regdomain(reg); | |
5be83de5 | 461 | wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
e3bb249b BC |
462 | } else { |
463 | /* | |
464 | * This gets applied in the case of the absense of CRDA, | |
465 | * it's our own custom world regulatory domain, similar to | |
466 | * cfg80211's but we enable passive scanning. | |
467 | */ | |
468 | regd = ath_default_world_regdomain(); | |
469 | } | |
470 | wiphy_apply_custom_regulatory(wiphy, regd); | |
471 | ath_reg_apply_radar_flags(wiphy); | |
472 | ath_reg_apply_world_flags(wiphy, NL80211_REGDOM_SET_BY_DRIVER, reg); | |
473 | return 0; | |
474 | } | |
475 | ||
5d2214ac LR |
476 | /* |
477 | * Some users have reported their EEPROM programmed with | |
478 | * 0x8000 set, this is not a supported regulatory domain | |
479 | * but since we have more than one user with it we need | |
480 | * a solution for them. We default to 0x64, which is the | |
481 | * default Atheros world regulatory domain. | |
482 | */ | |
483 | static void ath_regd_sanitize(struct ath_regulatory *reg) | |
484 | { | |
485 | if (reg->current_rd != COUNTRY_ERD_FLAG) | |
486 | return; | |
487 | printk(KERN_DEBUG "ath: EEPROM regdomain sanitized\n"); | |
488 | reg->current_rd = 0x64; | |
489 | } | |
490 | ||
6b2b2ffb LR |
491 | int |
492 | ath_regd_init(struct ath_regulatory *reg, | |
493 | struct wiphy *wiphy, | |
494 | int (*reg_notifier)(struct wiphy *wiphy, | |
495 | struct regulatory_request *request)) | |
f078f209 | 496 | { |
f078f209 | 497 | struct country_code_to_enum_rd *country = NULL; |
e775aaf0 | 498 | u16 regdmn; |
f078f209 | 499 | |
e03e5ffd LR |
500 | if (!reg) |
501 | return -EINVAL; | |
502 | ||
5d2214ac LR |
503 | ath_regd_sanitize(reg); |
504 | ||
e03e5ffd LR |
505 | printk(KERN_DEBUG "ath: EEPROM regdomain: 0x%0x\n", reg->current_rd); |
506 | ||
3a702e49 | 507 | if (!ath_regd_is_eeprom_valid(reg)) { |
85efc86e | 508 | printk(KERN_ERR "ath: Invalid EEPROM contents\n"); |
5f8e077c | 509 | return -EINVAL; |
f078f209 LR |
510 | } |
511 | ||
3a702e49 BC |
512 | regdmn = ath_regd_get_eepromRD(reg); |
513 | reg->country_code = ath_regd_get_default_country(regdmn); | |
f078f209 | 514 | |
c02cf373 | 515 | if (reg->country_code == CTRY_DEFAULT && |
e03e5ffd LR |
516 | regdmn == CTRY_DEFAULT) { |
517 | printk(KERN_DEBUG "ath: EEPROM indicates default " | |
518 | "country code should be used\n"); | |
c02cf373 | 519 | reg->country_code = CTRY_UNITED_STATES; |
e03e5ffd | 520 | } |
f078f209 | 521 | |
c02cf373 | 522 | if (reg->country_code == CTRY_DEFAULT) { |
f078f209 LR |
523 | country = NULL; |
524 | } else { | |
e03e5ffd LR |
525 | printk(KERN_DEBUG "ath: doing EEPROM country->regdmn " |
526 | "map search\n"); | |
3a702e49 | 527 | country = ath_regd_find_country(reg->country_code); |
f078f209 | 528 | if (country == NULL) { |
c02cf373 | 529 | printk(KERN_DEBUG |
e03e5ffd LR |
530 | "ath: no valid country maps found for " |
531 | "country code: 0x%0x\n", | |
c02cf373 | 532 | reg->country_code); |
5f8e077c | 533 | return -EINVAL; |
e03e5ffd | 534 | } else { |
f078f209 | 535 | regdmn = country->regDmnEnum; |
e03e5ffd LR |
536 | printk(KERN_DEBUG "ath: country maps to " |
537 | "regdmn code: 0x%0x\n", | |
538 | regdmn); | |
539 | } | |
f078f209 LR |
540 | } |
541 | ||
3a702e49 | 542 | reg->regpair = ath_get_regpair(regdmn); |
f078f209 | 543 | |
c02cf373 | 544 | if (!reg->regpair) { |
3a702e49 | 545 | printk(KERN_DEBUG "ath: " |
5f8e077c LR |
546 | "No regulatory domain pair found, cannot continue\n"); |
547 | return -EINVAL; | |
f078f209 | 548 | } |
f078f209 | 549 | |
5f8e077c | 550 | if (!country) |
3a702e49 | 551 | country = ath_regd_find_country_by_rd(regdmn); |
f078f209 | 552 | |
5f8e077c | 553 | if (country) { |
c02cf373 BC |
554 | reg->alpha2[0] = country->isoName[0]; |
555 | reg->alpha2[1] = country->isoName[1]; | |
f078f209 | 556 | } else { |
c02cf373 BC |
557 | reg->alpha2[0] = '0'; |
558 | reg->alpha2[1] = '0'; | |
f078f209 LR |
559 | } |
560 | ||
3a702e49 | 561 | printk(KERN_DEBUG "ath: Country alpha2 being used: %c%c\n", |
c02cf373 | 562 | reg->alpha2[0], reg->alpha2[1]); |
e03e5ffd | 563 | printk(KERN_DEBUG "ath: Regpair used: 0x%0x\n", |
c02cf373 | 564 | reg->regpair->regDmnEnum); |
f078f209 | 565 | |
e3bb249b | 566 | ath_regd_init_wiphy(reg, wiphy, reg_notifier); |
5f8e077c | 567 | return 0; |
f078f209 | 568 | } |
3a702e49 | 569 | EXPORT_SYMBOL(ath_regd_init); |
f078f209 | 570 | |
3a702e49 BC |
571 | u32 ath_regd_get_band_ctl(struct ath_regulatory *reg, |
572 | enum ieee80211_band band) | |
f078f209 | 573 | { |
c02cf373 BC |
574 | if (!reg->regpair || |
575 | (reg->country_code == CTRY_DEFAULT && | |
3a702e49 | 576 | is_wwr_sku(ath_regd_get_eepromRD(reg)))) { |
fc2ada30 BC |
577 | return SD_NO_CTL; |
578 | } | |
579 | ||
580 | switch (band) { | |
581 | case IEEE80211_BAND_2GHZ: | |
c02cf373 | 582 | return reg->regpair->reg_2ghz_ctl; |
fc2ada30 | 583 | case IEEE80211_BAND_5GHZ: |
c02cf373 | 584 | return reg->regpair->reg_5ghz_ctl; |
fc2ada30 BC |
585 | default: |
586 | return NO_CTL; | |
f078f209 | 587 | } |
fc2ada30 | 588 | } |
3a702e49 | 589 | EXPORT_SYMBOL(ath_regd_get_band_ctl); |